you have to enable quad core use in the config.wtf
if you change the line: SET processAffinityMask from "3" to "15" WoW will take advantage of all 4 cores.



also setup keyclone to use the following settings


wow1 cpu1
wow2 cpu2
wow3 cpu2
wow4 cpu3
wow5 cpu3


leave cpu0 untouched


setup wow to run from one directory using symbolic links - this will help performance


at the end of the day you will find your bottleneck is your Graphics Card - I had issues with one card and one screen (couldn't really get on with it), so i bought another card and installed it and the performance was worse!! in the end i upgraded an old pc to current standards and now get 60-110fps on my main pc and between 40-100fps on each of my other characters running on the second machine - it actually makes it a joy to play.


i have listed the thread detailing my specs:
New Setup